| 单词 | gram-equivalent |
| 释义 | gram1 or gramme /gram/nounA unit of mass in the metric system, formerly that of a cubic centimetre of water at 4ºC, now a thousandth part of the International Prototype Kilogram (see kilogram under kilo-) ORIGIN: Fr gramme, from L gramma, from Gr gramma a letter, a small weight gram-atˈom or gram-atomic weight, gram-molˈecule or gram-molecular weight noun The quantity of an element, or a compound, whose mass in grams is equal to its atomic weight and molecular weight respectively (a now discarded concept; see mole4) gram-equivˈalent or gram-equivalent weight noun The quantity of a substance whose mass in grams is equal to its equivalent weight |
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